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I am preparing to install BT's remote MAP using the alternate install method where you tee off the brake booster line for vacuum to the bypass valve. I bought a 3/8" X 1/4" X 3/8" brass tee adapter, so I'm set there. My BRZ is an Auto, so it gets vacuum for the brake booster line from a different place than the manuals do. I think it's from a vacuum pump attached to the back of the head, not the manifold. Does that matter?
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